finite_difference

成功实现3维FDTD的算法，算法简洁明了(Successful implementation of the three-dimensional FDTD algorithm is simple and clear)

This program print electric field pattern for rectangular Aperture Antenna

说明：  音频水印算法实现，其中包括水印的嵌入，音频水印常用攻击，以及检测算法的实现。(Audio watermarking algorithms, including the watermark embedding, audio watermarking common attacks, and the detection algorithm.)

线性调频信号的matlab仿真，匹配滤波和脉冲压缩处理(Chirp Signal Matlab-Simulation, angepasste Filterung und Pulskompression)

这是一个基本的PCA方法实现人脸图像压缩与重建，可以非常快捷的将一些无法辨别的人脸图像进行快速的拼接。(This is a basic PCA method to achieve image compression and reconstruction of the face, can be very quick to identify the human face that can not be quickly spliced images.)

对一个图像进行锐化。让图像看上去更清晰，轮廓更明显。(An image sharpening. Let the image looks clearer and more obvious profile.)

matlab毕业编程【谷速软件】应用程序启动时显示闪屏 (matlab graduate program displays a splash screen when [Valley] application launch speed software)

精通matlab7这本书的例程，11-15部分(Proficient matlab7 this book routine, 11-Part 15)

抛物型方程的有限差分法——六点对称格式，即Crank-Nicolson格式(Parabolic finite difference method- six point symmetric form,i.e.Crank-Nicolson Form)

直方图均衡：原始图的直方图变换为均匀分布的形式，这样就增加了象素灰度值的动态范围从而达到增强对比度的效果 中值滤波：中值滤波属于非线性平滑滤波器，它可以消除噪声又能保护图象的细节(histogram equalization : the original plan to transform the histogram in the form of uniform distribution. This will increase the value of the pixel gray areas so as to achieve dynamic contrast enhanced effect of filtering : Median filter is nonlinear smoothing filter, it can eliminate noise while preserving image details)